confirmate
Confirmate is an English verb meaning to confirm, verify, or establish the truth, validity, or authority of something; to attest, approve, or ratify a claim, document, or decision. The term is uncommon in modern standard English and is generally considered archaic, literary, or specialized. In contemporary usage, writers normally substitute "confirm" or more specific terms such as "verify," "certify," "authenticate," or "ratify" depending on the context.
Originating from Latin confirmare (to make firm), confirmate entered English via Early Modern Latin and Romance-language
Usage notes and examples: If a document or claim is to be made firm in modern English,